We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Box of 500 white 6.5 x 9.5 inch open end catalog envelopes with self-seal flaps

WESTERN STATES

WESTERN STATES 6.5 x 9.5 Open End Catalog Envelope 28# White Self-Seal Flaps Extended Box 500

SKU CH-H0GK-4JWJS

Holds 6.5 x 9.5 inch documents in 28# white SFI certified sulphite with self-seal latex flaps extended, 500 per box weighing 13 lbs

  • SFI certified paper meets responsible forestry standards
  • 92% brightness gives documents a clean professional look
  • Self-seal latex adhesive closes envelopes without moisture
  • 28# white sulphite stock resists tearing in transit
  • Box of 500 supports high-volume mailing needs

White Sulphite Catalog Envelope

This 6.5 x 9.5 inch open-end envelope uses 28-pound white sulphite paper with a vellum finish. The SFI-certified stock delivers 92% brightness for a clean, professional appearance. A centre-seam construction adds strength for catalogues, reports or multi-page mailings. Each box contains 500 envelopes.

Self-Seal Flap Performance

The Pres-Stik latex adhesive activates with pressure alone, so no moistening is required during high-volume mailing sessions. Extended flaps stay flat while filling, then seal reliably across the full width. The 28# basis weight resists tearing when stuffed with thicker inserts. Adhesive integrity holds through automated sorting equipment.

Paper Specification Limits

The 28# sulphite sheet sets a practical ceiling on insert bulk before seam stress becomes an issue. Latex adhesive performs best at normal indoor humidity; extreme dryness or moisture can reduce tack. SFI certification confirms responsible fibre sourcing but does not alter mailing regulations. Box weight of 13 lbs determines handling and palletising limits.

How it compares

Measured against everything we stock in Packing Materials & Shipping Labels, at today’s prices. Recalculated every night.

Price $93.99
Pricier than about 65% of the 3,067 comparable items (median $52.99).

Specifications

Product
Brand nameThe Envelope Supplies Shop

Questions about this item

How much does a full box of these 28# envelopes weigh when I keep it on the shelf all day?

Each box of 500 envelopes weighs 13 lbs, so the shelf load is constant and produces no noise or heat.

Do I need a separate moistener or tape to seal the self-seal flaps on these 6.5 x 9.5 envelopes?

No, the Pres-Stik latex adhesive activates with pressure alone — just press the extended flap down to seal.

Will these 92% brightness white sulphite envelopes match the shade of older letterhead I already have?

The 92% brightness white with vellum finish gives a consistent, neutral tone that pairs well with most existing stationery.

More in Packing Materials & Shipping Labels

Similar items